A pixel mask-based three-dimensional (3-D) display with uniform resolution is proposed. This 3-D display consists of a reflected light source, a pixel mask, a liquid crystal display (LCD) panel, and a lenticular lens. The reflected light source is located on the bottom layer of the proposed 3-D display. It has a reflective structure to improve optical efficiency, so it can make up the brightness loss, which is caused by the pixel mask. The pixel mask is located between the reflected light source and the LCD panel, and is attached on the back surface of the LCD panel. This pixel mask is made of a reflective material, and some transparent areas are etched on it. The pixel mask redefines the pixels of the two-dimensional display panel located in front of it, so the size and location of redefined pixels depend on the transparent area of the pixel mask. The arrangement of the redefined pixels can increase the column numbers of synthetic images. Therefore, the synthetic images can make 3-D images have uniform resolution. A 4-view prototype of this display is developed and the experimental result shows the proposed method can improve resolution uniformity successfully.
An adaptive Cylindrical Lens Array (ACLA) for a 2D/3D switchable display is demonstrated. The ACLA is based on two transparent liquids of different refractive indexes and an elastic membrane. Driving these two liquids to flow can change the shape of the elastic membrane as well as the focal length. In this design, the gravity effect of liquid can be overcome. An ACLA demo for the 2D/3D switchable display is developed. The experimental result shows that the ACLA demo works as a light splitting and 2D/3D switching component of the 2D/3D switchable display effectively and the 2D/3D switchable display is realized.
A variable-focus cylindrical liquid lens array based on two transparent liquids of different refractive index is
demonstrated. An elastic membrane divides a transparent reservoir into two chambers. The two chambers are filled with
liquid 1 and liquid 2, respectively, which are of different refractive index. The micro-clapboards help liquid 1, liquid 2
and the elastic membrane form a cylindrical lens array. Driving these two liquids to flow can change the shape of the
elastic membrane as well as the focal length. In this design, the gravity effect of liquid can be overcome. A demo lens
array of positive optical power is developed and tested. Moreover, a potential application of the proposed lens array for
autostereoscopic 3D displays is emphasized.